KẾT QUẢ XA PHỤC HỒI VẬN ĐỘNG CƠ THON TRÊN BỆNH NHÂN GHÉP CƠ THON MỘT THÌ ĐIỀU TRỊ LIỆT MẶT MẠN TÍNH

Abstract

Introduction: Treatment of chronic facial paralysis with the aim of restoring smile symmetry remains a challenge for plastic surgeons. There have been reports of two-phase functional muscle transfer surgery, however, the discovery of the source of the Masseteric nerve has given a new direction for surgery to treat chronic facial paralysis with a then surgery. Methods: Cross-sectional clinical descriphẫu thuậtive study evaluating the long-term results of one-stage muscle transfer surgery with the source being the masseter nerve from 2020 - 2023. The effectiveness of the surgical method was evaluated on three contents: 1) Classification of smiles according to Chuang's, 2) Time of spontaneous laughter and 3) Assessment of the degree of surgical scars based on the VSS scale. Results: In a study of 31 patients undergoing one-stage microsurgical muscle transfer surgery, smile classification according to Chuang's had 12/31 subjects with 4 points, 14/31 with 3 points and 5/31 with 2 points. 14/31 patients had spontaneous laughter with an average appearance time of 19.3±11.3 months. The average scar status score according to the VSS scale is 2.94±1.34. Conclusion: One-stage microsurgical gracilis muscle transfer surgery for chronic facial paralysis results in a high level of improvement in the symmetrical smile of the subject and leaves few sequelae at the nerve donor site and at the gracilis muscle donor site.